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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: 151 – 2 x = 7 mũ 5 chia 7 mũ 3

Toán Lớp 6: 151 – 2 x = 7 mũ 5 chia 7 mũ 3

Comments ( 2 )

  1. 151 – 2x = 7^5 : 7^3
    151 – 2x = 7^2
    151 – 2x = 49
    2x = 151 – 49
    2x = 102
    x = 102 : 2
    x = 51
    => x = 51
    @ Rin

  2. 151-2x=7^5:7^3
    =>151-2x=7^2
    =>151-2x=49
    =>2x=151-49
    =>2x=102
    =>x=102:2=51
    Vậy x=51

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222-9+11+12:2*14+14 = ? ( )